From fd8f724147b0a64c15f42dd09d21d8b2f81f6cbc Mon Sep 17 00:00:00 2001
From: Stefan Monnier <monnier@iro.umontreal.ca>
Date: Mon, 27 Feb 2017 00:06:08 -0500
Subject: [PATCH] * src/xdisp.c (overlay_arrows_changed_p): Fix last change.

---
 src/xdisp.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/xdisp.c b/src/xdisp.c
index a4c3c706552..4e87001abf7 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -13358,14 +13358,19 @@ overlay_arrows_changed_p (bool set_redisplay)
       if (!MARKERP (val))
 	continue;
       if (! EQ (COERCE_MARKER (val),
+                /* FIXME: Don't we have a problem, using such a global
+                 * "last-position" if the variable is buffer-local?  */
 		Fget (var, Qlast_arrow_position))
 	  || ! (pstr = overlay_arrow_string_or_property (var),
 		EQ (pstr, Fget (var, Qlast_arrow_string))))
 	{
 	  struct buffer *buf = XMARKER (val)->buffer;
 
-	  if (set_redisplay && buf)
-	    bset_redisplay (buf);
+	  if (set_redisplay)
+            {
+              if (buf)
+	        bset_redisplay (buf);
+            }
 	  else
 	    return true;
 	}
-- 
2.39.5